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Katarina [22]
3 years ago
6

Urgently!! Any help please ??

Chemistry
2 answers:
Annette [7]3 years ago
7 0

Answer:A

Explanation: because you have to distribute it

Aleks04 [339]3 years ago
6 0
I’m not sure but I think it’s a
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__?__ is when cells divide. *
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Answer:

B.Mitosis

Explanation:

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3 years ago
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Hamid made this table to organize his notes on the properties of acids and bases.
Molodets [167]

Answer : The property in the wrong column is, base form hydrogen gas with metals

Explanation :

Acid : It is a substance that has ability of donating a proton or hydrogen ion, H^+.

The properties of an acid are :

  • Acids are sour in taste.
  • It conduct electricity.
  • The texture of an acid solution is sticky.
  • It react with carbonates to give salt.
  • It changes the color of the litmus paper to red.
  • It react with a metal to give compound and hydrogen gas.

Base : It is a substance that has ability of donating hydroxide ion, OH^-.

The properties of an base are :

  • Base are bitter in taste.
  • It conduct electricity.
  • The texture of an base solution is slippery.
  • It changes the color of the litmus paper to blue.
  • It does not react with a metal.

Hence, from the above information, we conclude that the property in the wrong column is, base form hydrogen gas with metals .

8 0
3 years ago
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Calculate the amount (in moles) of gas which occupies 250cm³ at STP
Elis [28]

Answer:

0.01

Explanation:

volume of 22.4 L (22,400 ml) at s.t.p. 250 ml out of 22,400 ml is 0.01 rounded, therefore I assume that is the answer. About 0.01 mole occupies 250 cm3 at s.t.p.

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3 years ago
What is a molecule???
ololo11 [35]
A molecule consists of group of atoms that are bonded together by chemical bond. It is the smallest particle of an element or a compound that has the properties of the element or the compound embedded in it. The atoms present in one element easily forms a bonding with the atoms of another element to form molecules. The size and complex nature of molecules varies hugely. Some molecules can have a single atom as is the case with helium, while in several other elements the number of atoms in the molecule can be more than one.
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What is one factor that must be considered when choosing a pesticide to apply?
sasho [114]

Answer:

effect on the environment and/or legality

Explanation:

some pesticides are horrible for the environment and banned

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